12142442311 has 4 divisors (see below), whose sum is σ = 12204079272. Its totient is φ = 12080805352.

The previous prime is 12142442251. The next prime is 12142442317. The reversal of 12142442311 is 11324424121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11324424121 = 383 ⋅29567687.

It is a cyclic number.

It is not a de Polignac number, because 12142442311 - 2⁹ = 12142441799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142442317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30818185 + ... + 30818578.

It is an arithmetic number, because the mean of its divisors is an integer number (3051019818).

Almost surely, 2^12142442311 is an apocalyptic number.

12142442311 is a deficient number, since it is larger than the sum of its proper divisors (61636961).

12142442311 is an equidigital number, since it uses as much as digits as its factorization.

12142442311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61636960.

The product of its digits is 1536, while the sum is 25.

Adding to 12142442311 its reverse (11324424121), we get a palindrome (23466866432).

The spelling of 12142442311 in words is "twelve billion, one hundred forty-two million, four hundred forty-two thousand, three hundred eleven".